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http://dx.doi.org/10.9726/kspse.2011.15.5.005

A Study on Lubrication Characteristic of the Hydrostatic Bearing In Swash Plate Type Piston Motor  

Lee, Yong-Bum (한국기계연구원)
Kim, Kwang-Min (우림기계(주))
Publication Information
Journal of Power System Engineering / v.15, no.5, 2011 , pp. 5-9 More about this Journal
Abstract
The hydraulic piston using a hydrostatic bearing has been used widely due to its satisfying performance at very high pressurized circumstance and relative higher power density in comparison to conventional one. For high pressurization, enhanced efficiency and long durability of the hydraulic piston, the design of hydrostatic bearing is at issue, which is installed between piston shoe and swash plate. The performance of the hydrostatic bearing is influenced significantly by the assembly of the piston shoe consisting of circular land and recess. In this study, to estimate the performance of the hydrostatic bearing, the characteristics for lubrication of the assembly of the piston shoe were investigated by measuring a leakage rate of hydraulic fluid under an experimental condition, where a rotating velocity of the piston, hydraulic pressure and temperature of the hydraulic fluid were changed systematically. In addition, a film thickness of the hydraulic fluid on the piston shoe was measured and compared to theoretical one.
Keywords
Hydrostatic Bearing; Piston Shoe; Film Thickness; Leakage Flow Rate;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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